6.21 bits per second per hertz (b/s/Hz) over 6,644 km, translating to a fiber capacity of 26.2 terabits per second (Tb/s)

4.46 b/s/Hz over 13,210 km for 18.6 Tb/s fiber capacity

Details of the trial were presented by Scott Jackson, Infinera Subsea CTO, at the Submarine Networks World conference this week. To achieve the record-breaking results, Infinera employed several advanced technologies including precision, multi-carrier common wavelocking based on Infinera’s large-scale photonic integrated circuit (PIC), digitally synthesized subcarriers with “near Nyquist” pulse shaping, enabled by the ICE4 real-time coherent digital signal processor, and operation over a high-optical power, large-area optical fiber cable.

Bandwidth-hungry applications and cloud-scale architectures are driving the need for dramatically increased subsea network capacity. Meeting these demands requires a combination of a cutting-edge optical wet plant and real-time advanced coherent transmission systems. Historically, trans-Atlantic cables have not been able to use higher order modulations, such as 16 quadrature amplitude modulation (16QAM), to achieve higher capacity. Several technology advances helped overcome this limitation. These include modern, large effective area subsea cables that improve the reach for higher order modulations. Combining this with a range of advanced coherent technologies and unique properties of a PIC implementation, Infinera successfully validated 16QAM over unusually long distances, using exceptionally tight channel spacing.

“We were thrilled to have an opportunity to work with a major internet content provider to demonstrate Infinera’s leading innovation in spectral efficiency over the MAREA cable system,” said Dr. David Welch, Co-Founder and Chief Strategy and Technology Officer of Infinera. “Infinera’s ICE4 technology has continually delivered in optical performance for our customers over the past year. This latest example, in a production platform, allowed upwards of more than 30 percent increased spectral capacity over other supplier technologies that are available today. We will continue to advance our large-scale photonic integration to maximize capacity and continue industry leading performance for the benefit of our customers.”

Infinera and the Infinera logo are registered trademarks of Infinera Corporation.

This press release contains forward-looking statements. These statements are not guarantees of results and should not be considered as an indication of future activity or future performance. Actual results may vary materially from these expectations as a result of various risks and uncertainties. Information about these risks and uncertainties, and other risks and uncertainties that affect Infinera’s business, is contained in the risk factors section and other sections of Infinera’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2018 as filed with the SEC on August 8, 2018, as well subsequent reports filed with or furnished to the SEC. These reports are available on Infinera’s website at www.infinera.com and the SEC’s website at www.sec.gov. Infinera assumes no obligation to, and does not currently intend to, update any such forward-looking statements.

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